216th largest plant in Wisconsin · 11698th nationally
Elroy Solar is a solar power plant in Wisconsin with a nameplate capacity of 1.5 MW. It generates roughly 1.9k MWh per year — enough to power about 181 average U.S. homes.
Its capacity factor of 15% reflects intermittent or peaking operation.
| Plant Name | Elroy Solar |
|---|---|
| Operator | Butter Solar, Llc |
| City | Mauston |
| County | Juneau County |
| State | Wisconsin |
| ZIP | 53948 |
| Coordinates | 43.73200, -90.02500 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ELR5 | Solar Photovoltaic | Solar | 1.5 MW | Operating | 2019 |
| NERC Region | MRO |
|---|---|
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. |
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.